CN103818699B - There is the belt break protection device of deceleration - Google Patents
There is the belt break protection device of deceleration Download PDFInfo
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- CN103818699B CN103818699B CN201410040930.XA CN201410040930A CN103818699B CN 103818699 B CN103818699 B CN 103818699B CN 201410040930 A CN201410040930 A CN 201410040930A CN 103818699 B CN103818699 B CN 103818699B
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- 230000003068 static effect Effects 0.000 claims abstract description 57
- 238000013016 damping Methods 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 230000007423 decrease Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Structure Of Belt Conveyors (AREA)
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Abstract
The invention discloses a kind of belt break protection device with deceleration, comprise frame and arresting agency, arresting agency comprises upper conveyor belt and arrests portion and lower load-transfer device arrests portion, the upper conveyor belt portion of arresting comprise can upwards swing under gravity on arrest dynamic branch and be arranged on upper rack on arrest quiet branch, on arrest dynamic branch be flapped toward and near the side of being located thereon on arrest quiet branch, and with above arrest quiet branch and coordinate the clamping gap, top being formed and can arrest upper conveyor belt, on to arrest quiet branch be that crossbeam is arrested in top, top is arrested crossbeam and is comprised regulating control for buffer deceleration, regulating control comprises static beam, be positioned at static beam below and upper arrest the effect of dynamic branch under the portable beam that can move up and the upward movement of portable beam is produced to the damping structure of resistance.In the present invention, the setting of regulating control can arrest to load-transfer device the effect playing deceleration, decreases in capture process and injures the impact of frame, extend the service life of frame.
Description
Technical Field
The invention relates to a belt breakage protection device, in particular to a belt breakage protection device with a speed reduction function.
Background
The belt conveyor is widely applied to the fields of mines, metallurgy, chemical industry, light industry, coal, ports and the like, and along with the lengthening of conveying distance, the abrasion caused by the transmission of a conveying belt and the error of maintenance, the belt conveyor can generate belt breakage accidents in the operation process, and in order to avoid the belt breakage accidents, the belt breakage protection device is generally installed on the belt conveyor.
Patent CN201713083U discloses a broken belt catcher of a belt conveyor, which comprises an upper broken belt catching part and a lower broken belt catching part, wherein the upper broken belt catching part comprises an upper catching movable part capable of swinging upwards under the action of gravity and an upper catching static part fixed on the upper part of a frame, the upper catching movable part swings towards and is close to the upper catching static part positioned above the upper catching movable part, and the upper catching static part are matched to form an upper clamping gap capable of catching an upper broken belt; the lower adhesive tape catching part comprises a lower catching moving part and a lower catching static part, wherein the lower catching moving part can swing downwards under the action of gravity, the lower catching static part is fixed on the lower portion of the rack, the lower catching moving part swings towards and is close to the lower catching static part located below the lower catching moving part, and a lower clamping gap capable of catching a broken tape on the lower layer is formed by matching with the lower catching static part. The broken belt catcher is used as a carrier roller under normal conditions, when belt breakage occurs, the tension of a conveying belt suddenly drops, the upper and lower rubber belt catching parts are triggered by the gravity action of the parts to catch the broken belt, and although the broken belt catcher can simultaneously catch the upper and lower rubber belts after belt breakage, the broken belt catcher can easily cause great impact on a conveyor body frame body in the catching process due to quick catching, so that the damage to the body part of the conveyor body frame is caused.
It will thus be seen that the prior art is susceptible to further improvements and enhancements.
Disclosure of Invention
In order to avoid the defects in the prior art, the invention provides the belt breakage protection device with the speed reduction function.
The technical scheme adopted by the invention is as follows:
the broken belt protection device with the speed reduction function comprises a rack and a catching mechanism, wherein the catching mechanism comprises an upper conveying belt catching part and a lower conveying belt catching part; the upper conveying belt capturing part comprises an upper capturing moving part and an upper capturing static part, the upper capturing moving part can swing upwards under the action of gravity, the upper capturing static part is arranged at the upper part of the rack, the upper capturing moving part swings towards and is close to the upper capturing static part above the upper capturing moving part, an upper clamping gap capable of capturing the upper conveying belt is formed by matching with the upper capturing static part, the upper capturing static part is an upper capturing cross beam, the upper capturing cross beam comprises an adjuster for buffering and decelerating, the adjuster comprises a static beam, a movable beam and a damping structure, the movable beam is located below the static beam and can move upwards under the action of the upper capturing moving part, and the damping structure generates resistance to the ascending movement of the movable beam; the lower conveying belt capturing part comprises a lower capturing moving part and a lower capturing static part, wherein the lower capturing moving part can swing downwards under the action of gravity, the lower capturing static part is arranged at the lower part of the rack, the lower capturing moving part swings towards and is close to the lower capturing static part positioned below the lower capturing moving part, and the lower capturing static part is matched with the lower capturing static part to form a clamping gap below the lower conveying belt.
The movable beam is characterized in that two parallel connecting plates are fixedly connected to two sides of the bottom end of the static beam, the section of the movable beam is U-shaped and comprises a bottom plate and positioning plates fixed to two sides of the top end of the bottom plate, and the movable beam is installed between the two connecting plates through a guide positioning assembly.
Damping structure is including setting up the electro-magnet between static roof beam and walking beam, the electro-magnet has two, it is first electro-magnet and second electro-magnet respectively, first electro-magnet and second electro-magnet are parallel to each other and there is the clearance between the two, first electro-magnet is located the top of second electro-magnet, it is first, the second electro-magnet all links to each other with the power supply part through the power supply line, first electro-magnet passes through the positioning disk and installs on the lower terminal surface of static roof beam, the guide way has been seted up to the centre of positioning disk, the below of positioning disk is provided with the guide post that can follow above-mentioned guide way and remove, the guide post is the conductor, it is first, all set up the through-hole that supplies the guide post to pass on the second electro-magnet, the bottom of guide post has linked firmly the positioning disk, the up end of guide disk adjacent above-mentioned.
And a junction box is arranged between the first electromagnet and the power supply part and between the second electromagnet and the power supply part, and the junction box is arranged on the rack.
The guide positioning assembly comprises positioning blocks which are respectively installed at the relative positions of the two connecting plates, guide holes are formed in each positioning block, and the two positioning plates of the movable beam are fixedly connected with positioning pins which can move up and down along the guide holes.
The upper capturing and moving part comprises an upper capturing frame, an upper carrier roller for supporting an upper conveying belt and an upper capturing shoe block arranged at the front end of the upper capturing frame, the upper carrier roller is arranged above the upper capturing frame, the upper capturing frame is rotatably connected with the rack through a first rotating shaft, two ends of the first rotating shaft are respectively provided with a counterweight arm, the free end of the counterweight arm is provided with a counterweight box, and a counterweight block is contained in the counterweight box; the lower capturing and moving part comprises a lower capturing frame, a lower pressing roller and a lower capturing shoe block, the lower pressing roller is used for pressing and holding the lower conveying belt, the lower capturing shoe block is arranged at the front end of the lower capturing frame, the lower pressing roller is arranged below the lower capturing frame, the lower capturing frame is rotatably connected with the rack through a second rotating shaft, a rotating hole opposite to the second rotating shaft is formed in the rack, and the lower capturing and static part is a lower capturing cross beam.
The frame includes left side frame and right side frame, catches the mechanism and is located between the left and right side frame, still be provided with in the frame and be used for carrying on spacing the oblique bearing roller of keeping off with higher authority to last conveyer belt and be used for carrying on spacing the oblique bearing roller of keeping off with lower authority to lower conveyer belt, the oblique bearing roller of keeping off with higher authority has two, and it installs respectively in the upper portion of left and right side frame and is located the top and catches the oblique below of crossbeam, keeps off with lower authority has two, and it installs respectively in the lower part of left and right side frame and is located the below and catches the oblique top of crossbeam.
And protective nets are arranged at the rear parts of the left and right side frames.
The number of the damping structures is two, and the number of the guide positioning assemblies is two.
The width between the left side rack and the right side rack is larger than the belt width of the conveyer belt of the belt conveyer.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention changes the gap between the upper catching shoe block and the upper catching beam through the damping effect generated by the magnetic field, plays a role in reducing the speed of the catching of the conveyer belt, reduces the impact damage to the rack in the catching process and prolongs the service life of the rack.
2. The invention has compact structure, convenient installation and maintenance and lower manufacturing cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of an upper catching beam in the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a schematic view of an assembly structure of the stationary beam and the movable beam according to the present invention.
Fig. 5 is a schematic view of the regulator of the present invention.
Wherein,
1. the device comprises a frame 101, a left side frame 102, a right side frame 2, an upper capturing beam 201, a static beam 202, a connecting plate 203, a movable beam 204, a positioning pin 205, a positioning block 206, a guide hole 207, a power supply component 208, a junction box 209, a power supply line 210, a positioning disc 211, a guide groove 212, a first electromagnet 213, a second electromagnet 214, a guide post 215, a guide disc 3, an upper capturing frame 4, an upper idler 5, an upper capturing shoe 6, a first rotating shaft 7, a counterweight arm 8, a counterweight box 9, a lower capturing frame 10, a lower capturing shoe 11, a lower pressure roller 12, a lower capturing beam 13, an upper blocking deflection idler 14, a lower blocking deflection idler 15, a second rotating shaft 16, a protective net 13
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, but the present invention is not limited to these examples.
As shown in fig. 1, the belt breakage protection device with the speed reduction function comprises a frame 1 and a capturing mechanism, wherein the frame 1 comprises a left frame 101 and a right frame 102, protective nets 16 are respectively installed behind the left frame and the right frame, the width between the left frame and the right frame is larger than the belt width of a belt conveyor in application, the capturing mechanism is positioned between the left frame and the right frame, and the capturing mechanism comprises an upper belt capturing part and a lower belt capturing part; the upper conveying belt catching part comprises an upper catching moving part and an upper catching static part, wherein the upper catching moving part can swing upwards under the action of gravity, the upper catching static part is arranged at the upper part of the rack 1, the upper catching moving part swings towards and is close to the upper catching static part above the upper catching moving part, and the upper catching static part are matched to form an upper clamping gap capable of catching the upper conveying belt; the lower conveying belt capturing part comprises a lower capturing moving part and a lower capturing static part, wherein the lower capturing moving part can swing downwards under the action of gravity, the lower capturing static part is arranged at the lower part of the rack 1, the lower capturing moving part swings towards and is close to the lower capturing static part positioned below the lower capturing moving part, and the lower capturing moving part and the lower capturing static part are matched to form a clamping gap below the lower conveying belt.
As shown in fig. 1 to 5, the upper capturing part comprises an upper capturing frame 3, an upper carrier roller 4 for supporting an upper conveying belt, and an upper capturing shoe 5 mounted at the front end of the upper capturing frame 3, the upper carrier roller 4 is mounted above the upper capturing frame 3, the upper capturing frame 3 is rotatably connected with the frame 1 through a first rotating shaft 6, two ends of the first rotating shaft 6 are respectively provided with a counterweight arm 7, the free end of the counterweight arm 7 is provided with a counterweight box 8, and a counterweight block is contained in the counterweight box 8; the upper capturing static part is an upper capturing beam 2, the upper capturing beam 2 comprises an adjuster for buffering and decelerating, and the adjuster comprises a static beam 201, a movable beam 203 which is positioned below the static beam 201 and can move upwards under the action of the upper capturing static part, and a damping structure for generating resistance to the ascending motion of the movable beam 203; two parallel connecting plates 202 are fixedly connected to two sides of the bottom end of the static beam 201, the cross section of the movable beam 203 is U-shaped and comprises a bottom plate and positioning plates fixed to two sides of the top end of the bottom plate, the movable beam 203 is installed between the two connecting plates 202 through guide positioning assemblies, two damping structures are provided, and the number of the damping structures is two and is corresponding to that of the damping structures; the guiding and positioning assembly comprises positioning blocks 205 which are respectively installed at the opposite positions of the two connecting plates 202, each positioning block 205 is provided with a guiding hole 206, and the two positioning plates of the movable beam 203 are fixedly connected with positioning pins 204 which can move up and down along the guiding holes 206; the damping structure comprises two electromagnets arranged between a static beam 201 and a movable beam 203, the electromagnets are respectively a first electromagnet 212 and a second electromagnet 213, the first electromagnet 212 and the second electromagnet 213 are parallel to each other and have a gap therebetween, the first electromagnet 212 is positioned above the second electromagnet 213, the first electromagnet and the second electromagnet are both connected with a power supply part 207 through a power supply line 209, a junction box 208 is arranged between the first electromagnet and the power supply part 207, the junction box 208 is arranged on the frame 1, the first electromagnet 212 is arranged on the lower end surface of the static beam 201 through a positioning disc 210, a guide groove 211 is arranged in the middle of the positioning disc 210, a guide post 214 capable of moving along the guide groove 211 is arranged below the positioning disc 210, the guide post 214 is a conductor, through holes for the guide post 214 to pass through are arranged on the first electromagnet and the second electromagnet, the bottom end of the guide post 214 is fixedly connected with the guide disc 215, the guide plate 215 is closely attached to the upper end surface of the base plate, and the second electromagnet 213 is located on the upper end surface of the guide plate 215.
The working principle of the invention is as follows: when the belt conveyor normally operates, under the action of the dead weight of the movable beam 203, the guide post 214, the guide disc 215 and the second electromagnet 213, the gap between the movable beam 203 and the upper catching shoe 5 is not moved, if the upper conveying belt is broken during the operation of the belt conveyor, the upper conveying belt loses effective pressure on the upper carrier roller 4 at the moment of the breakage, meanwhile, the upper catching frame 3 carries the upper carrier roller 4 and the upper catching shoe 5 to swing upwards under the action of the counterweight arm 7 and the counterweight box 8, the upper catching shoe 5 and the upper catching beam 2 form a clamping gap capable of catching an upper broken belt, the upper catching shoe 5 pushes the movable beam 203 to ascend, and further pushes the guide post 214, the guide disc 215 and the second electromagnet 213 to move upwards, the magnetic field between the first electromagnet and the second electromagnet changes, and the generated induced current enables the guide post 214 to be subjected to ampere force to block the ascending movement of the guide post 214, therefore, damping force is generated on the ascending motion of the movable beam 203, a certain buffering effect is achieved on the capturing process, and impact damage to the rack 1 caused in the capturing moment is reduced.
As shown in fig. 1, the lower capturing moving part comprises a lower capturing frame 9, a lower press roller 11 for pressing and holding the lower conveying belt, and a lower capturing shoe 10 mounted at the front end of the lower capturing frame 9, the lower press roller 11 is mounted below the lower capturing frame 9, the lower capturing frame 9 is rotatably connected with the frame 1 through a second rotating shaft 15, a rotating hole opposite to the second rotating shaft 15 is formed in the frame 1, the lower capturing static part is a lower capturing cross beam 12, and a regulator for buffering and decelerating can be arranged in the lower capturing cross beam 12; if the lower conveying belt of the belt conveyor is broken in the running process, the lower conveying belt loses effective support on the lower pressing roller 11 instantly, and the lower capturing frame 9 drives the lower pressing roller 11 and the lower capturing shoe block 10 to swing downwards under the action of the self gravity of the lower capturing frame 9 until a clamping gap capable of capturing the broken belt of the lower layer is formed between the lower capturing shoe block 10 and the lower capturing cross beam 12.
As shown in fig. 1, the frame 1 is further provided with an upper deflection-preventing carrier roller 13 for limiting the upper conveying belt and a lower deflection-preventing carrier roller 14 for limiting the lower conveying belt, two upper deflection-preventing carrier rollers 13 are respectively installed at the upper parts of the left and right frames and located obliquely below the upper catching beam 2, and two lower deflection-preventing carrier rollers 14 are respectively installed at the lower parts of the left and right frames and located obliquely above the lower catching beam 12.
The parts which are not described in the invention can be realized by adopting or referring to the prior art.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "lateral", "longitudinal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Although the terms of the machine frame 1, the upper catching beam 2, the walking beam 203, the guide hole 206, the guide disc 215, the upper catching frame 3, the weight box 8, the lower press roll 11, the second rotation axis 15, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. Disconnected area protection device with speed reduction function, including the frame with catch the mechanism, its characterized in that: the catching mechanism comprises an upper conveying belt catching part and a lower conveying belt catching part; the upper conveying belt capturing part comprises an upper capturing moving part and an upper capturing static part, the upper capturing moving part can swing upwards under the action of gravity, the upper capturing static part is arranged at the upper part of the rack, the upper capturing moving part swings towards and is close to the upper capturing static part above the upper capturing moving part, an upper clamping gap capable of capturing the upper conveying belt is formed by matching with the upper capturing static part, the upper capturing static part is an upper capturing cross beam, the upper capturing cross beam comprises an adjuster for buffering and decelerating, the adjuster comprises a static beam, a movable beam and a damping structure, the movable beam is located below the static beam and can move upwards under the action of the upper capturing moving part, and the damping structure generates resistance to the ascending movement of the movable beam; the lower conveying belt capturing part comprises a lower capturing moving part and a lower capturing static part, wherein the lower capturing moving part can swing downwards under the action of gravity, the lower capturing static part is arranged at the lower part of the rack, swings towards and is close to the lower capturing static part positioned below the lower capturing moving part, and the lower capturing moving part and the lower capturing static part are matched to form a clamping gap below the lower conveying belt; two parallel connecting plates are fixedly connected to two sides of the bottom end of the static beam, the cross section of the movable beam is U-shaped and comprises a bottom plate and positioning plates fixed to two sides of the top end of the bottom plate, and the movable beam is installed between the two connecting plates through a guide positioning assembly; damping structure is including setting up the electro-magnet between static roof beam and walking beam, the electro-magnet has two, it is first electro-magnet and second electro-magnet respectively, first electro-magnet and second electro-magnet are parallel to each other and there is the clearance between the two, first electro-magnet is located the top of second electro-magnet, it is first, the second electro-magnet all links to each other with the power supply part through the power supply line, first electro-magnet passes through the positioning disk and installs on the lower terminal surface of static roof beam, the guide way has been seted up to the centre of positioning disk, the below of positioning disk is provided with the guide post that can follow above-mentioned guide way and remove, the guide post is the conductor, it is first, all set up the through-hole that supplies the guide post to pass on the second electro-magnet, the bottom of guide post has linked firmly the positioning disk, the up end of guide disk adjacent above-mentioned.
2. The belt breakage protection device with a deceleration function according to claim 1, characterized in that: and a junction box is arranged between the first electromagnet and the power supply part and between the second electromagnet and the power supply part, and the junction box is arranged on the rack.
3. The belt breakage protection device with a deceleration function according to claim 1, characterized in that: the guide positioning assembly comprises positioning blocks which are respectively installed at the relative positions of the two connecting plates, guide holes are formed in each positioning block, and the two positioning plates of the movable beam are fixedly connected with positioning pins which can move up and down along the guide holes.
4. The belt breakage protection device with a deceleration function according to claim 1, characterized in that: the upper capturing and moving part comprises an upper capturing frame, an upper carrier roller for supporting an upper conveying belt and an upper capturing shoe block arranged at the front end of the upper capturing frame, the upper carrier roller is arranged above the upper capturing frame, the upper capturing frame is rotatably connected with the rack through a first rotating shaft, two ends of the first rotating shaft are respectively provided with a counterweight arm, the free end of the counterweight arm is provided with a counterweight box, and a counterweight block is contained in the counterweight box; the lower capturing and moving part comprises a lower capturing frame, a lower pressing roller and a lower capturing shoe block, the lower pressing roller is used for pressing and holding the lower conveying belt, the lower capturing shoe block is arranged at the front end of the lower capturing frame, the lower pressing roller is arranged below the lower capturing frame, the lower capturing frame is rotatably connected with the rack through a second rotating shaft, a rotating hole opposite to the second rotating shaft is formed in the rack, and the lower capturing and static part is a lower capturing cross beam.
5. The belt breakage protection device with a deceleration function according to claim 4, characterized in that: the frame includes left side frame and right side frame, catches the mechanism and is located between the left and right side frame, still be provided with in the frame and be used for carrying on spacing the oblique bearing roller of keeping off with higher authority to last conveyer belt and be used for carrying on spacing the oblique bearing roller of keeping off with lower authority to lower conveyer belt, the oblique bearing roller of keeping off with higher authority has two, and it installs respectively in the upper portion of left and right side frame and is located the top and catches the oblique below of crossbeam, keeps off with lower authority has two, and it installs respectively in the lower part of left and right side frame and is located the below and catches the oblique top of crossbeam.
6. The belt breakage protection device with deceleration function according to claim 5, characterized in that: and protective nets are arranged at the rear parts of the left and right side frames.
7. The belt breakage protection device with a deceleration function according to claim 3, characterized in that: the number of the damping structures is two, and the number of the guide positioning assemblies is two.
8. The belt breakage protection device with deceleration function according to claim 5, characterized in that: the width between the left side rack and the right side rack is larger than the belt width of the conveyer belt of the belt conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040930.XA CN103818699B (en) | 2014-01-27 | 2014-01-27 | There is the belt break protection device of deceleration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040930.XA CN103818699B (en) | 2014-01-27 | 2014-01-27 | There is the belt break protection device of deceleration |
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| CN103818699A CN103818699A (en) | 2014-05-28 |
| CN103818699B true CN103818699B (en) | 2015-11-18 |
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| CN201410040930.XA Active CN103818699B (en) | 2014-01-27 | 2014-01-27 | There is the belt break protection device of deceleration |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103787048B (en) * | 2014-01-27 | 2016-06-29 | 山东科大机电科技股份有限公司 | There is the belt break protection device of deceleration |
| CN104276391B (en) * | 2014-10-21 | 2017-02-01 | 河北工业大学 | Belt breakage protecting device of belt conveyor |
| CN112027567B (en) * | 2020-08-21 | 2022-06-03 | 叶文贤 | Stable catching mechanism of broken belt grabbing and paving device |
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| CN203728117U (en) * | 2014-01-27 | 2014-07-23 | 山东科大机电科技有限公司 | Belt breakage protection device with deceleration function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004016531A1 (en) * | 2002-08-19 | 2004-02-26 | Hubert De Villiers Barnard | Conveyor belt arrestor |
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| US6814220B1 (en) * | 2000-01-25 | 2004-11-09 | Jan Harmes Nieuwoudt | Retaining device for a conveyor belt assembly |
| CN201713083U (en) * | 2010-05-31 | 2011-01-19 | 山东科技大学 | Broken belt protector of belt conveyor |
| CN103043395A (en) * | 2013-01-16 | 2013-04-17 | 中国矿业大学 | Automatic trigger broken belt capturing device for belt conveyer |
| CN103787048A (en) * | 2014-01-27 | 2014-05-14 | 山东科大机电科技有限公司 | Belt-broken protective device with deceleration function |
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